The gastroscopy procedure

A gastroscopy often takes less than 15 minutes, although it may take longer if it's being used to treat a condition.

It's usually carried out as an outpatient procedure, which means you won't have to spend the night in hospital.

Before the procedure, your throat will be numbed with a local anaesthetic spray. You can also choose to have a sedative, if you prefer. This means you will still be awake, but will be drowsy and have reduced awareness about what's happening.

The doctor carrying out the procedure will place the endoscope in the back of your mouth and ask you to swallow the first part of the tube. It will then be guided down your oesophagus and into your stomach.

The procedure shouldn't be painful, but it may be unpleasant or uncomfortable at times.